WAI 13240N Alternator

Alternator Overview

This WAI alternator, part number 13240N, is a 100% new replacement built to deliver the amperage needed for modern electrical loads. It uses an internal regulator, internal fan design, and a DENSO family layout for direct-style service on supported applications.

Compatible With Toyota Corolla, Toyota Celica, and Geo Prizm applications listed below, this unit is built for dependable charging performance. The 13240N is a practical choice when the original alternator is no longer maintaining proper system voltage.

Key Features

• 70-amp output for stable charging performance.
• 100% new construction, not remanufactured.
• Internal regulator and internal fan design.
• Clockwise rotation with a serpentine pulley setup.
• 5-groove pulley included for supported fitments.
• DENSO family design for application-specific replacement.

Detailed Description

The WAI 13240N alternator is engineered for vehicles that require a 70-amp charging unit with a serpentine belt drive and clockwise rotation. Its internal regulator and included pulley support straightforward replacement on listed Toyota and Geo applications, including 1990-1993 Toyota Celica, 1989-1992 Geo Prizm, and 1990-1992 Toyota Corolla. This part number 13240N cross-references BBB Industries 13240 for the same application.

For Toyota Corolla and Toyota Celica owners, this alternator provides a direct-fit electrical charging solution where the original unit has worn out or no longer meets output demand. The 13240N also matches listed Geo Prizm configurations with Delco or NDenso units, helping maintain consistent charging system operation.

What It Is Used For

• Restoring charging output when the battery is not staying charged.
• Replacing a worn alternator with internal regulator failure.
• Addressing low-voltage or intermittent electrical system performance.
• Correcting belt-drive charging issues on serpentine applications.
• Replacing a unit that no longer matches the required amperage rating.

Installation Notes and Tips

Verify the original unit’s rotation direction, pulley groove count, and amperage rating before installation. Fitment notes include stamped #16170 on 1990-1992 Toyota Corolla and Denso 60 or 70 amp coverage for 1988-1989 Toyota Corolla, supplied as 70 amp. Confirm connector and mounting details against the removed alternator to ensure the correct application.

Quality Assurance

WAI states that this alternator is manufactured new with proprietary components and processes to support long service life and consistent performance. Part number 13240N is built to meet the charging demands of supported Toyota and Geo applications.